What is CVE-2021-21961?

CVE-2021-21961 is a critical-severity vulnerability in Sealevel Seaconnect_370w, classified under Stack-based Buffer Overflow. CVSS score: 10.0/10. Published 2022-02-04.

How severe is CVE-2021-21961?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Buffer overflow in Sealevel Seaconnect_370w

CVE-2021-21961

A stack-based buffer overflow vulnerability exists in the NBNS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet t…

Vulnerability class: Buffer Overflow

EPSS: 0.026 (83.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Sealevel Seaconnect_370w
Sealevel Seaconnect_370w_firmware — versions 1.3.34
N/a Sealevel — versions Sealevel Systems, Inc. SeaConnect 370W v1.3.34

Weakness classification (CWE)

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21961?: CVE-2021-21961 is a critical-severity vulnerability in Sealevel Seaconnect_370w, classified under Stack-based Buffer Overflow. CVSS score: 10.0/10. Published 2022-02-04.
How severe is CVE-2021-21961?: Critical severity. CVSS v3 base score is 10.0 out of 10.